Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A touch display unit, comprising: a first electrode and a second electrode; a touch electrode, disposed in a same layer as one of the first electrode and the second electrode and insulated from each other; a signal line, configured to transmit a signal to the touch electrode; a first thin film transistor, through which the signal is transmitted from the signal line to the touch electrode, the first thin film transistor comprising: a first gate electrode, a first source electrode and a first drain electrode; and a second thin film transistor, disposed in the at least one of the plurality of pixel units, the second thin film transistor comprising: a second gate electrode, a second source electrode and a second drain electrode, the second source electrode being connected with the touch electrode, and the second drain electrode being connected with the first electrode.
A touch display unit integrates touch sensing and display functions by incorporating touch electrodes within the same layer as display electrodes, such as first and second electrodes, while maintaining electrical insulation between them. The unit includes a touch electrode positioned in the same layer as either the first or second electrode and connected to a signal line via a first thin film transistor (TFT). The first TFT comprises a gate, source, and drain electrode, enabling signal transmission from the signal line to the touch electrode. Additionally, a second TFT is included, with its source electrode connected to the touch electrode and its drain electrode connected to the first electrode. This configuration allows the touch electrode to function as part of the display's pixel circuitry while also enabling touch sensing. The design optimizes space by sharing layers between touch and display components, reducing manufacturing complexity and improving integration efficiency. The system addresses the challenge of combining touch functionality with high-resolution displays without increasing device thickness or compromising performance.
2. A touch display panel, comprising: a plurality of gate lines and a plurality of data lines, intersected each other to define a plurality of pixel units; a first electrode and a second electrode, both disposed in each pixel unit; a touch electrode, located in at least one of the plurality of pixel units, disposed in a same layer as one of the first electrode and the second electrode and insulated from each other; a signal line, configured to transmit a signal to the touch electrode; a first thin film transistor, through which the signal is transmitted from the signal line to the touch electrode, the first thin film transistor comprising: a first gate electrode, a first source electrode and a first drain electrode; and a second thin film transistor, disposed in the at least one of the plurality of pixel units, the second thin film transistor comprising: a second gate electrode, a second source electrode and a second drain electrode, the second source electrode being connected with the touch electrode, and the second drain electrode being connected with the first electrode.
A touch display panel integrates touch sensing and display functions by incorporating touch electrodes within the pixel array. The panel includes gate lines and data lines intersecting to form pixel units, each containing a first and second electrode for display functionality. A touch electrode is embedded in at least one pixel unit, sharing a layer with either the first or second electrode while remaining electrically insulated. A signal line delivers touch sensing signals to the touch electrode via a first thin film transistor (TFT), which includes a gate, source, and drain electrode. Additionally, a second TFT is placed in the same pixel unit, with its source connected to the touch electrode and its drain linked to the first electrode. This configuration enables simultaneous touch detection and display operation by leveraging shared layers and components, reducing manufacturing complexity and improving integration efficiency. The touch electrode's placement and the TFTs' connections facilitate signal routing without disrupting display performance, addressing the challenge of integrating touch functionality into high-resolution displays while maintaining structural simplicity.
3. The touch display panel according to claim 2 , further comprising: a first gate line, wherein the first gate line is connected with the first thin film transistor.
A touch display panel includes a substrate, a first thin film transistor (TFT) formed on the substrate, and a first gate line connected to the first TFT. The first TFT includes a gate electrode, a semiconductor layer, a source electrode, and a drain electrode. The gate electrode is electrically connected to the first gate line, which provides a control signal to activate the TFT. The semiconductor layer is positioned above the gate electrode and defines a channel region between the source and drain electrodes. The source and drain electrodes are electrically connected to the semiconductor layer and facilitate current flow when the TFT is activated. The touch display panel may also include a second TFT and a second gate line, where the second TFT is connected to the second gate line and operates similarly to the first TFT. The panel integrates touch sensing and display functions, allowing for simultaneous touch detection and image display. The gate lines provide timing and control signals to the TFTs, enabling precise switching and data transmission for both display and touch sensing operations. This design improves efficiency and reduces complexity by consolidating components within a single panel structure.
4. The touch display panel according to claim 3 , wherein the first gate electrode is connected with the first gate line, the first source electrode is connected with the signal line, and the first drain electrode is connected with the touch electrode.
A touch display panel integrates touch sensing and display functions to reduce device thickness and improve performance. Traditional designs often require separate touch and display layers, increasing complexity and cost. This invention addresses these issues by incorporating touch sensing directly into the display panel's thin-film transistor (TFT) structure. The panel includes a first gate electrode connected to a first gate line, a first source electrode connected to a signal line, and a first drain electrode connected to a touch electrode. The TFT structure forms a switching element that controls electrical signals between the signal line and the touch electrode. When a touch occurs, the TFT transmits sensing signals from the touch electrode to the signal line, enabling touch detection without additional layers. The gate line activates the TFT, allowing precise control over touch sensing timing. This design simplifies manufacturing by integrating touch functionality into the existing display TFT array, reducing material and assembly costs while maintaining high touch sensitivity and display performance. The invention is particularly useful in modern displays requiring compact, high-resolution touch interfaces.
5. The touch display panel according to claim 3 , further comprising: a base substrate, wherein, the first gate line is substantially parallel to each gate line, the first gate line and the gate line are disposed in different layers, and orthographic projections of the first gate line and the gate line on a plane of the base substrate are overlapped.
A touch display panel includes a base substrate with multiple gate lines and a first gate line. The first gate line is substantially parallel to the other gate lines but is disposed in a different layer. The orthographic projections of the first gate line and the other gate lines on the base substrate plane overlap, meaning they share the same spatial position when viewed from above. This overlapping projection allows for efficient use of space while maintaining electrical isolation between the layers. The panel may also include a touch sensing layer integrated with the display layer, enabling simultaneous touch detection and display functionality. The overlapping design helps reduce the overall footprint of the gate lines, improving display resolution and touch sensitivity without increasing the panel size. This configuration is particularly useful in high-resolution displays where space constraints are critical. The different layer arrangement ensures proper electrical insulation while allowing the gate lines to perform their respective functions in driving the display and touch sensing circuits.
6. The touch display panel according to claim 2 , wherein the touch electrode is disposed in a same layer as the first electrode, and a gap is formed between the touch electrode and the first electrode.
A touch display panel includes a substrate with a first electrode layer and a touch electrode layer. The first electrode layer contains multiple first electrodes, each connected to a first signal line. The touch electrode layer contains multiple touch electrodes, each connected to a second signal line. The touch electrodes are positioned in the same layer as the first electrodes, with a gap separating them to prevent electrical interference. This configuration allows the touch display panel to detect touch inputs while maintaining display functionality. The first electrodes may be part of a display circuit, such as a pixel electrode or a common electrode, while the touch electrodes are dedicated to touch sensing. The gap ensures that the touch electrodes do not short-circuit with the first electrodes, preserving signal integrity for both display and touch operations. This design integrates touch sensing directly into the display panel, reducing thickness and complexity compared to separate touch and display layers. The touch electrodes may be arranged in a grid or other pattern to provide accurate touch detection across the display surface. The first signal lines and second signal lines are routed separately to avoid interference, ensuring reliable operation of both display and touch functions. This integrated approach improves manufacturing efficiency and reduces cost while maintaining high performance.
7. The touch display panel according to claim 6 , further comprising: a second gate line, wherein the second gate line is connected with the second gate electrode, the second gate line is substantially parallel to each gate line, and is disposed in the gap between the touch electrode and the first electrode.
A touch display panel includes a substrate with a plurality of gate lines and data lines forming a pixel array. Each pixel includes a thin-film transistor (TFT) with a gate electrode, a source electrode, and a drain electrode. The panel also includes a touch electrode layer with touch electrodes for detecting touch input. The touch electrodes are electrically isolated from the pixel array and are connected to touch sensing circuitry. The panel further includes a first electrode, which may be a common electrode or a pixel electrode, positioned adjacent to the touch electrode. A first gate line is connected to the gate electrode of the TFT and is substantially parallel to the other gate lines. The panel also includes a second gate line, which is connected to a second gate electrode and is positioned in the gap between the touch electrode and the first electrode. The second gate line is parallel to the other gate lines and may be used to control additional TFTs or to improve signal integrity in the touch sensing circuitry. This configuration allows for integrated touch and display functionality while maintaining electrical isolation between the touch and display components. The second gate line helps reduce interference and improve the accuracy of touch sensing by providing additional control over the electrical fields in the panel.
8. The touch display panel according to claim 6 , further comprising: a base substrate, wherein an area of an orthographical projection of the touch electrode on a plane of the base substrate is smaller than an area of an orthographical projection of the first electrode on the plane of the base substrate.
A touch display panel includes a base substrate and multiple conductive layers. The panel has a touch electrode and a first electrode, where the touch electrode is used for sensing touch input, and the first electrode is part of a display structure, such as a common electrode or a pixel electrode. The touch electrode and the first electrode are positioned in different layers or regions of the panel. The orthographical projection of the touch electrode onto the base substrate has a smaller area than the orthographical projection of the first electrode. This design ensures that the touch electrode does not fully overlap the first electrode, which can improve touch sensitivity and reduce interference between the touch and display functions. The panel may also include additional electrodes or insulating layers to further optimize performance. The arrangement helps maintain display quality while enhancing touch responsiveness, addressing challenges in integrating touch and display functions in a single panel.
9. The touch display panel according to claim 2 , further comprising: a base substrate, wherein the touch electrode and the second electrode are disposed in a same layer, and orthographic projections of the first electrode and the touch electrode on a plane of the base substrate are overlapped with each other.
A touch display panel includes a base substrate with multiple conductive layers. The panel incorporates a touch electrode and a second electrode, both positioned in the same conductive layer. Additionally, a first electrode is included, and its orthographic projection on the base substrate plane overlaps with the orthographic projection of the touch electrode. This configuration allows the touch electrode and the second electrode to share the same conductive layer, reducing manufacturing complexity and improving integration efficiency. The overlapping projections of the first electrode and the touch electrode enable enhanced touch sensing accuracy by ensuring proper alignment and signal transmission. The panel is designed to address challenges in touch display integration, such as layer misalignment and signal interference, by optimizing electrode placement and layer utilization. The shared conductive layer for the touch and second electrodes simplifies the fabrication process while maintaining functional performance. The overlapping projections ensure that the first electrode and touch electrode are spatially aligned, which is critical for accurate touch detection and display functionality. This design is particularly useful in modern touchscreen devices where compactness and reliability are essential.
10. The touch display panel according to claim 2 , further comprising: a base substrate, wherein the signal line is substantially parallel to each data line, the signal line and the data line are disposed in different layers, and orthographic projections of the signal line and the data line on a plane of the base substrate are overlapped with each other.
A touch display panel includes a base substrate and a plurality of data lines arranged on the substrate. The panel further includes a signal line that is substantially parallel to each data line but disposed in a different layer. The signal line and data lines are arranged such that their orthographic projections on the plane of the base substrate overlap. This overlapping configuration allows for efficient signal transmission while minimizing interference between the signal line and data lines. The signal line may be used for touch sensing or other display-related functions, while the data lines transmit display data to pixel circuits. The overlapping design optimizes space utilization and ensures reliable signal integrity. The panel may be part of a larger display system, such as a liquid crystal display (LCD) or organic light-emitting diode (OLED) display, where precise signal routing is critical for performance. The different layer arrangement prevents electrical shorts while maintaining signal alignment. This structure is particularly useful in high-resolution displays where dense wiring is required. The overlapping projections ensure that the signal line does not interfere with the data lines' operation, improving overall display functionality.
11. A method for driving the touch display panel according to claim 2 , comprising: transmitting a touch signal to a touch electrode at same time of transmitting a display signal to a first electrode, wherein signals transmitted to the touch electrode and the first electrode are respectively transmitted through different lines.
A method for driving a touch display panel integrates touch sensing and display functions by simultaneously transmitting a touch signal to a touch electrode and a display signal to a first electrode. The touch signal and display signal are transmitted through separate, dedicated lines to avoid interference. The touch electrode is part of a touch sensing layer, while the first electrode is part of a display layer, such as a common electrode in a liquid crystal display (LCD) or a pixel electrode in an organic light-emitting diode (OLED) display. The method ensures that touch sensing and display operations occur concurrently without mutual disruption, improving responsiveness and efficiency. The separate transmission lines prevent signal crosstalk, ensuring accurate touch detection while maintaining display quality. This approach is particularly useful in capacitive touchscreens where touch sensing and display driving must coexist without degrading performance. The method may also include synchronization mechanisms to coordinate the timing of touch and display signals, further optimizing system performance. By isolating the signal paths, the method enables seamless integration of touch and display functions in a single panel, reducing complexity and cost compared to traditional solutions that require separate layers or time-division multiplexing.
12. The method for driving the touch display panel according to claim 11 , wherein the touch signal is transmitted to the touch electrode through a signal line, and the display signal is transmitted to the first electrode through a data line.
A method for driving a touch display panel addresses the challenge of integrating touch sensing and display functions in a single panel. The method involves transmitting a touch signal to a touch electrode via a signal line and a display signal to a first electrode via a data line. The touch electrode detects touch inputs, while the first electrode drives the display elements to produce visual output. The method ensures synchronized operation of both touch and display functions, preventing interference between the signals. The touch signal enables capacitive or resistive touch sensing, while the display signal drives pixels to form images. The method optimizes signal routing to minimize delays and improve responsiveness. By separating the signal paths for touch and display, the method enhances performance and reliability in touch-sensitive displays. This approach is applicable to various display technologies, including LCD, OLED, and other touch-enabled panels. The method improves user interaction by ensuring accurate touch detection without compromising display quality.
13. The method for driving the touch display panel according to claim 11 , wherein after completion of transmitting the touch signal to the touch electrode, the method further comprises: adjusting the touch signal to be the display signal.
A method for driving a touch display panel involves transmitting a touch signal to a touch electrode to detect touch input. After completing the touch signal transmission, the method further includes adjusting the touch signal to function as a display signal. This adjustment allows the same signal to be repurposed for driving the display functionality of the panel, eliminating the need for separate touch and display signals. The method optimizes signal usage by reconfiguring the touch signal into a display signal after touch detection, improving efficiency and reducing hardware complexity. The touch electrode is part of a touch display panel that integrates touch sensing and display functions, where the touch signal is initially used for capacitive or resistive touch sensing. Once touch input is detected, the signal is modified to drive the display elements, such as pixels or subpixels, ensuring seamless transition between touch and display operations. This approach enhances performance by minimizing signal switching delays and conserving power. The method is applicable to various touch display technologies, including capacitive touchscreens, where the touch and display functions share common electrodes or signal paths. By dynamically adjusting the signal, the method ensures compatibility with both touch sensing and display driving requirements.
14. The method for driving the touch display panel according to claim 11 , wherein after completion of transmitting the touch signal to the touch electrode, the method further comprises: adjusting a voltage of the touch signal to be greater than or equal to a voltage of the display signal.
A method for driving a touch display panel addresses the challenge of interference between touch and display signals, which can degrade touch sensitivity and display quality. The method involves transmitting a touch signal to a touch electrode to detect touch input, followed by adjusting the voltage of the touch signal to be greater than or equal to the voltage of the display signal. This adjustment ensures that the touch signal does not interfere with the display signal, maintaining accurate touch detection while preserving display performance. The method may also include transmitting the display signal to a display electrode to drive the display panel, where the touch and display electrodes are arranged in a stacked or integrated configuration. The touch signal is transmitted during a touch sensing period, while the display signal is transmitted during a display driving period, with synchronization between the two signals to avoid conflicts. The voltage adjustment step ensures that the touch signal remains dominant or equal in voltage to the display signal, preventing signal distortion and improving overall system reliability. This approach is particularly useful in touch-sensitive display devices where both touch and display functions must operate simultaneously without mutual interference.
15. The method for driving the touch display panel according to claim 14 , wherein the method further comprises: electrically connecting the first electrode and the touch electrode at same time of adjusting the voltage of the touch signal to be greater than or equal to the voltage of the display signal.
A method for driving a touch display panel addresses the challenge of interference between touch sensing and display operations, which can degrade performance in integrated touchscreen systems. The method involves synchronizing the application of a touch signal with a display signal to minimize mutual interference. Specifically, the method includes adjusting the voltage of the touch signal to be greater than or equal to the voltage of the display signal, ensuring that the touch signal dominates during sensing to prevent display signal interference. Additionally, the method electrically connects a first electrode and a touch electrode simultaneously with this voltage adjustment, enhancing signal integrity and reducing crosstalk. This synchronization improves touch sensitivity and accuracy while maintaining display quality, particularly in high-resolution or high-frequency display environments where signal interference is more pronounced. The approach is applicable to capacitive touchscreens and other integrated touch-display systems where signal separation is critical for reliable operation.
16. The method for driving the touch display panel according to claim 11 , wherein the transmitting the touch signal to the touch electrode comprises: inputting a touch driving signal for fingerprint recognition to the touch electrode through the signal line.
A method for driving a touch display panel addresses the challenge of integrating touch sensing and fingerprint recognition in a single device. The method involves transmitting a touch signal to a touch electrode, which is part of a touch display panel. Specifically, the touch signal is a touch driving signal designed for fingerprint recognition. This signal is input to the touch electrode through a signal line connected to the electrode. The touch electrode detects touch interactions, such as finger placement, and the driving signal enables the system to capture detailed fingerprint data. The method ensures that the touch display panel can perform both standard touch sensing and high-resolution fingerprint recognition without requiring separate hardware for each function. This integration simplifies device design, reduces cost, and enhances user experience by providing seamless touch and biometric authentication capabilities. The approach leverages existing touch sensing infrastructure, making it suitable for modern smartphones, tablets, and other touch-sensitive devices.
17. The method for driving the touch display panel according to claim 16 , wherein after inputting the touch driving signal to the touch electrode, the method further comprises: outputting a touch sensing signal from the touch electrode through the signal line.
A method for driving a touch display panel addresses the challenge of accurately detecting touch inputs while minimizing interference from display operations. The method involves applying a touch driving signal to a touch electrode, which is part of a touch sensing system integrated with a display panel. After the touch driving signal is applied, a touch sensing signal is output from the same touch electrode through a signal line. This allows the system to detect touch interactions by analyzing the touch sensing signal, which may include variations caused by a user's touch. The method ensures that the touch sensing process is synchronized with the display's operation, reducing noise and improving touch accuracy. The touch electrode may be part of a grid or array, and the signal line may be connected to a touch controller that processes the sensing signal to determine touch coordinates. This approach enhances the reliability of touch detection in display-integrated touch systems, particularly in applications requiring high precision, such as smartphones, tablets, and interactive displays. The method may also include additional steps, such as adjusting the timing or amplitude of the touch driving signal to optimize performance under different operating conditions.
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March 17, 2020
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